| Starter | Tm | Tier | Game |
|---|---|---|---|
| Rube Waddell | OAK | 8.45 | 190407190_BAL_OAK |
| Joe McGinnity | SFN | 5.6 | 190407210_SFN_CHN |
| Cy Young | BOS | 4.48 | 190407202_CLE_BOS |
| Jack Chesbro | NYA | 3.63 | 190407190_DET_NYA |
| Frank Owen | CHA | 1.73 | 190407210_CHA_NYA |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Tom Fisher | ATL | -5.7 | 190407212_ATL_CIN |
| Tully Sparks | PHI | -1.87 | 190407210_PHI_SLN |
| Joe Corbett | SLN | -1.83 | 190407190_ATL_SLN |
| Jack Harper | CIN | -1.03 | 190407190_LAN_CIN |
| Davey Dunkle | MIN | -0.68 | 190407190_CHA_MIN |
Based on accumulated WAA for this season up to 1904-07-21.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +001+ | 9.45 | Rube Waddell | 205.3 | OAK |
| +002+ | 8.36 | Jack Chesbro | 235 | NYA |
| +003+ | 7.7 | Joe McGinnity | 244.3 | SFN |
| +004+ | 6.44 | Frank Owen | 196.7 | CHA |
| +005+ | 6.4 | Eddie Plank | 199 | OAK |
| +006+ | 6.31 | Cy Young | 194.3 | BOS |
| +009+ | 4.27 | Ed Killian | 188 | DET |
| +010+ | 4.18 | Harry Howell | 151.7 | BAL |
| +011+ | 4.17 | Jesse Tannehill | 157.7 | BOS |
| +013+ | 4.02 | Patsy Flaherty | 150 | TOT |
| +015+ | 3.98 | Norwood Gibson | 132 | BOS |
| +017+ | 3.72 | Red Donahue | 135 | CLE |
| +018+ | 3.5 | Jack Taylor | 183 | SLN |
| +019+ | 3.38 | Bill Dinneen | 142.7 | BOS |
| +022+ | 3.22 | Earl Moore | 146.7 | CLE |
| +024+ | 3.12 | Frank Smith | 74 | CHA |
| +026+ | 3.05 | Fred Glade | 134.7 | BAL |
| +030+ | 2.92 | Ed Siever | 146.3 | BAL |
| +032+ | 2.83 | George Mullin | 216 | DET |
| +036+ | 2.65 | Bill Bernhard | 165 | CLE |
| +038+ | 2.46 | Kid Nichols | 158 | SLN |
| +040+ | 2.45 | Doc White | 112 | CHA |
| +041+ | 2.39 | Bill Donovan | 171.7 | DET |
| +046+ | 1.95 | Jake Weimer | 150.7 | CHN |
| +048+ | 1.9 | Weldon Henley | 149.7 | OAK |
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